TY - JOUR
T1 - Exchange-coupled Ni0.5Zn0.5Fe2O4/SrFe12O19 composites with enhanced microwave absorption performance
AU - Han, Qiuxia
AU - Meng, Xianfeng
AU - Lu, Chunhua
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/11/5
Y1 - 2018/11/5
N2 - Using sol-gel self-propagating combustion technique, Ni0.5Zn0.5Fe2O4/SrFe12O19 (NZFO/SFO) composites were successfully prepared at 1000 °C for 2 h and characterized by XRD, FTIR, SEM, TEM, VSM and VNA. It was observed that the grain size of NZFO was decreased with increase of SFO content. The magnetic properties and microwave absorption performance were closely related to the mass ratio of NZFO and SFO phase as well as thickness of sample. The sample with the mass ratio of 1:3 exhibited superior magnetic properties with Mr value of 30.5 emu·g−1 and Hc value of 3300 Oe. Meanwhile, when the thickness of sample was 4 mm, RLmin of −47.0 dB was obtained at 6.2 GHz and the bandwidth (RL < −10 dB) reached 6.4 GHz from 2.9 GHz to 9.3 GHz, which confirmed excellent broadband absorption performance of NZFO/SFO composites.
AB - Using sol-gel self-propagating combustion technique, Ni0.5Zn0.5Fe2O4/SrFe12O19 (NZFO/SFO) composites were successfully prepared at 1000 °C for 2 h and characterized by XRD, FTIR, SEM, TEM, VSM and VNA. It was observed that the grain size of NZFO was decreased with increase of SFO content. The magnetic properties and microwave absorption performance were closely related to the mass ratio of NZFO and SFO phase as well as thickness of sample. The sample with the mass ratio of 1:3 exhibited superior magnetic properties with Mr value of 30.5 emu·g−1 and Hc value of 3300 Oe. Meanwhile, when the thickness of sample was 4 mm, RLmin of −47.0 dB was obtained at 6.2 GHz and the bandwidth (RL < −10 dB) reached 6.4 GHz from 2.9 GHz to 9.3 GHz, which confirmed excellent broadband absorption performance of NZFO/SFO composites.
KW - Exchange-coupling effect
KW - Microwave absorption
KW - Soft/hard magnetic composite
KW - Sol-gel self-propagating combustion
UR - http://www.scopus.com/inward/record.url?scp=85050822757&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2018.07.310
DO - 10.1016/j.jallcom.2018.07.310
M3 - 文章
AN - SCOPUS:85050822757
SN - 0925-8388
VL - 768
SP - 742
EP - 749
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -